import { login, logout, getInfo } from '@/api/user'
import { getToken, setToken, removeToken } from '@/utils/auth'
import router, { resetRouter } from '@/router'

const state = {
  token: getToken(),
  name: '',
  avatar: '',
  introduction: '',
  roles: []
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  }
}
// 修改登录接口入参
const actions = {
  // user login
  login({ commit }, userInfo) {
    const { username, password } = userInfo
    return new Promise((resolve, reject) => {
      // 调接口
      // 只修改调接口时 传入的key  为name
      login({ name: username.trim(), password: password }).then(response => {
        const { data } = response
        // 存到仓库
        commit('SET_TOKEN', data.token)
        // 存到cokie
        setToken(data.token)
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // 获取用户信息  接口在这里
  getInfo({ commit, state }) {
    return new Promise((resolve, reject) => {
      getInfo({ token: state.token }).then(response => {
        const arr = response.data.permissions.map((item) => item.path)
        // 从用户个人信息内拿到permissions(是后端给我们的当前用户可访问路由信息)
        // 遍历用递归将permissions内的路由地址放到当前用户的rules内
        console.log(arr)
        // 我们的用户信息接口  跟原来的数据不一样了
        // 改造下 接口数据 写死
        const { data } = {
          data: {
            roles: arr, // admin  editor
            name: 'admin',
            avatar: 'https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif',
            introduction: '我是固定的签名'
          }
        }

        if (!data) {
          reject('Verification failed, please Login again.')
        }

        const { roles, name, avatar, introduction } = data

        // roles must be a non-empty array
        if (!roles || roles.length <= 0) {
          reject('getInfo: roles must be a non-null array!')
        }

        commit('SET_ROLES', roles)
        commit('SET_NAME', name)
        commit('SET_AVATAR', avatar)
        commit('SET_INTRODUCTION', introduction)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({ commit, state, dispatch }) {
    return new Promise((resolve, reject) => {
      logout({ token: state.token }).then(() => {
        commit('SET_TOKEN', '')
        commit('SET_ROLES', [])
        removeToken()
        resetRouter()

        // reset visited views and cached views
        // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
        dispatch('tagsView/delAllViews', null, { root: true })

        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve()
    })
  },

  // dynamically modify permissions
  async changeRoles({ commit, dispatch }, role) {
    const token = role + '-token'

    commit('SET_TOKEN', token)
    setToken(token)

    const { roles } = await dispatch('getInfo')

    resetRouter()

    // generate accessible routes map based on roles
    const accessRoutes = await dispatch('permission/generateRoutes', roles, { root: true })
    // dynamically add accessible routes
    router.addRoutes(accessRoutes)

    // reset visited views and cached views
    dispatch('tagsView/delAllViews', null, { root: true })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
